Reply to PA System HELP!!!

So in my mobile setup I have 2 JBL active speakers and an active seismic Audio 18'' subwoofer along with a Yamaha 12-channel mixer. I was wondering with the inputs/outputs available to me what the best way to hook all of this gear together would be. The way I have been going about it was to daisy chain the two JBL's to the Subwoofer and the the subwoofer back to the Mixer but have been experiencing issues such as heavy clipping and am weary of an underlying problem that if fixed, would provide much better sound quality overall. I am amateur at best when it comes to live audio so I am really scratching my head on how to resolve this issue. I've attached picture of the inputs and outputs on my two JBL's and the Seismic Audio Sub and also a picture of the mixer although it is not the exact same mixer as I have it is very similar. If anybody has any guidance or tips that could help me fix this issue I would GREATLY APPRECIATE IT! Thanks in advance!

JBL EON inputs outputs.jpgSeismic Audio Sub Inputs Outputs.jpgMixer.jpg


Best,
Tj D